Safety draw-bar.



H. F. BALL.

SAFETY DRAW BAR.

APPLICATIQN FILED ria.27,1911.

Patented J une 26, 1917.

INVENTOR .a nin MRMAN E'. BALL, 0F BRONXVILL, NEW YORK, ASSIGNOR `'ZlO ECONOMY DEVICES UOBPORATION, F NEW YORK, N. Y., A CORPORATION OF NEW YORK.

' sarn'rr Danni-nan.

resinas.

Application led February 27,1917. `Serial No. 151,213.

tender, and its object is to provide a supple- I mental or safety draw bar,"the movement of which is coincident with that of the main draw bar, but which will not be dependentI upon the draw bar pins, or main' draw bar, for support, and will therefore be operative in the event of the breakage or displacement of the main draw bar or the draw bar pins.

F The improvement claimed is hereinafter fully set forth.

ln the accompanying drawings: Figure 1 is a plan view, partly in horizontal section, of the middle portion of the adjoining ends of a locomotive and tender, illustrating an application of my invention; Fig. 2, a verti-` cal longitudinal central section through the same; and, Fig. 3, a view, the right hund half of which is a front elevation of so much of the appliance as is located on thc tender, and the left hand half, a vertical transverse section, on the axial line of the tender draw. bar pin.

ln Letters Patent of the United States No. 1,223,553, granted and issued to me under date of April 24,3917, l have set forth an improvement in draw bar' pin castings, for application in connection with which, withl certain structural modications hereinafter noted, my presentl invention is particularly designed, and which, as so structurally modied, will be herein sufficiently described to explain the relation of my present invention thereto.

ln the practice of my invention, referring descriptively to the specific embodiment thereof which is herein exemplified, the locomotive and tender are, as hertofore, and as in my Letters Patent No. 1,223,553 aforesaid, connected by a main draw bar, l, which is coupled to the locomotive by a pin,

2, passing through a pocket, 3, on the footl plate, 3, and to the, tender, by a pin, 4, passing through a draw bar pin casting, 5, 5, 5b, 5, 5d. The draw bar pin castingi 1s, under my present invention. horizontally divided into two` sections, which are tt'ed detachably together, and, when so fitted, constitute a box formed member, of substantially rectangular section, which is locatedv between the side walls of a draw. head6, rigidly secured to the center sills, 7, and

Specicatfon of Letters Patent. Patented Juri@ 26H5, llillf,

front end sill, 8, of the tender. The casting l is supported on carry irons, 7a, secured to the draw head by bolts, 7b.

`The draw barpin casting comprises an upper plate, 5*,and a separate lower plate,

5b, said plates having vertical side plates,

5, formed upon them, which abut in the horl izontal plane of division of the casting, and

being vertically perforated, in lineaxially, tov receive the draw bar pin, 4. The two sections ofthe draw bar' pin casting abut, at I their forward ends, against lateral stops, 6, formed on the draw head, 6, and are forced against saidstops by keys, 8, abutting on their rear ends and on the rear vertical transverse Wall'of the raw head, and drawn to properbearingfby bolts, 9, and nuts, 9.

A hub or boss, 5d, is formed on the lower plate, 5, of the draw bar. pin casting, and

a similar hub or boss, 3b, is formed on the bottom of the pocket, 3a, of the foot plate 0f the locomotive. The openings of these hubs are concentric with the openings in the castings in which the draw bar pins are fitted. An auxiliary or safety draw bar, 10,

having eyes, 10, and 10b, in its ends, is fitted on the hubs, .5 and 3b, the diameters ofthe eyes being slightly greater than those of the hubs, so that the safety draw bai' shall not be normally under tension. The main draw bar, l, which' is fitted on the coupling pins, 4 and 2, inthe ordinary manner rests on the tops of the bosses, 5d and 3h, and the coupling pin, 4, being inserted from below, it is prevented from dropping out by a removable plate, 4a.

The ordinary safety chain and pin coupled safety draw bar are unsatisfactory in practice, for the reason that in order to permit of curving, it is necessary to provide considerable slack, and in the event of failure of the draw bar or coupling pins, one or the other of the draw bars is subjected to the f sutliciently strong to at'all times withstandl the stresses imposed, or to guard against parting by breakage of a coupling pin. By

my invention, ample sectional area may be imposed, and in the event of the` breakage of a coupling pin, said bar will maintain the an auxiliary or safety draw bar, coupled to a boss on the draw bar pin casting, surrounding the coupling pin socket and indeconnection of the locomotiveanel-tender.- w-pendently of the coupling pin socket, and

I claim as my inventionand desire to secure by Letters Patent:

1. In a railroad vehicle draft gear, the combination of a draw bar pin casting adapted to be' supported on a railroad vehicle; a draw bar coupling pin fitted in a socket on said casting; a'v main draw bar coupled to said pin and adapted to be coupled, at its opposite end, to another vehicle;

and an auxiliary or safety draw bal' coupled to a boss on the draw bar pin casting, surrounding the coupling pin socket, and independently of the coupling pin, and adapted .to be coupled, at its opposite end, to

another vehicle.

2. In a railroad vehicle dra-ft gear, the combination oia draw bar pin casting ladapted to be supported" on a locomotive vtenderya draw bmfeeupling pin fitted in a socket on said casting; a Vmain draw bar coupled to said pin; acoupling pin pocket snnilarly coupled, at its opposite end, to the coupling pin ocket of the locomotive.

3. In a rai road' vehicle draft gear, the combination of a draw bar pin casting, horizontally divided into two separable sections, and adapted to be supported on a railroad vehicle; a draw bar coupling pin iitted in sockets in said sections; a main draw bar` coupled to said pin and adapted to be coupled, at its opposite end, to another vehicle;

and an auxiliary or safety draw bar, coupled to a boss on the lower section of the draw bar pin casting, surrounding theV coupling pin socket below the bearing of the main draw bar on the coupling pin, and adapted to be coupled, at its opposite end, to another Vehicle.

HERMAN F. BALL.

Witnesses:

J SNOWDEN BELL, EDWARD A. WRIGHT. 

